Arbitrum (ARB) is an important Layer 2 scaling solution for Ethereum, with its governance token, ARB, distributed in 2023. The Arbitrum network utilizes Optimistic Rollup technology, aiming to significantly increase the transaction processing speed (throughput) and substantially reduce transaction costs (Gas fees) of the Ethereum network by moving computation and storage off-chain, while still leveraging the security of the Ethereum mainnet. The core function of the ARB token is governance, granting holders the right to participate in decision-making regarding the future development of the Arbitrum network, such as voting on proposals for technical upgrades and fund utilization 。

As one of the leading Layer 2 solutions within the Ethereum ecosystem, the value of the ARB token is closely tied to the adoption level of the Arbitrum network, including its Total Value Locked (TVL), number of active users, and the number of decentralized applications deployed on it. The token's distribution includes a significant portion allocated for ecosystem building and development, and its market performance is often seen as an indicator of the health of the Ethereum Layer 2 scaling sector 。

Other governance tokens for Layer 2 networks focused on scaling Ethereum, similar to ARB, include Optimism (OP).

Buying and selling ARB can be done on the Matrixport website and app. Established in 2019, Matrixport is a globally leading, Asia-largest one-stop crypto financial services platform.